ShellCodeX Intelligence Brief
CRITICAL
Vulnerabilities
Squidbleed bug in Squid proxy can expose other users’ HTTP requests
Source headline: 29-Year-Old Squid Proxy Bug 'Squidbleed' Can Leak Cleartext HTTP Requests
Threat level
Critical
Signal strength
80/100
Source confidence
1 source
Published
2 hours ago
Intelligence Summary
A heap over-read vulnerability in the Squid web proxy can reveal another user’s cleartext HTTP request. Leaked data may include credentials or session tokens present in the request. Any attacker who can send traffic through the same Squid instance may be able to trigger disclosure. The issue is traced to an older FTP-parsing change from 1997 and remains present in Squid’s default configuration. Calif.io disclosed the bug publicly as Squidbleed in June, giving operators a clear patch and hardening target.
Recommended Action
Prioritize immediate review, validate exposure, and patch or mitigate affected systems.
Topics
Original reporting
The Hacker News
29-Year-Old Squid Proxy Bug 'Squidbleed' Can Leak Cleartext HTTP Requests
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